Year: 2024
Type: article
Abstract: The crystal structure of the title compound, hexaaquanickel(II) dichloride–1,4,7,10,13,16-hexaoxacyclooctadecane–water (1/2/2), [Ni(H 2 O) 6 ]Cl 2 ·2C 12 H 24 O 6 ·2H 2 O, is reported. The asymmetric unit contains half of the Ni(OH 2 ) 6 moiety with a formula of C 12 H 32 ClNi 0.50 O 10 at 105 K and triclinic ( P 1 ) symmetry. The [Ni(OH 2 ) 6 ] 2+ cation has close to ideal octahedral geometry with O—Ni—O bond angles that are within 3° of idealized values. The supramolecular structure includes hydrogen bonding between the water ligands, 18-crown-6 molecules, Cl − anions, and co-crystallized water solvent. Two crown ether molecules flank the [Ni(OH 2 ) 6 ] 2+ molecule at the axial positions in a sandwich-like structure. The relatively symmetric hydrogen-bonding network is enabled by small Cl − counter-ions and likely influences the more idealized octahedral geometry of [Ni(OH 2 ) 6 ] 2+ .
Authors: Jacob P. Brannon, Kevin Liang, S. Chantal E. Stieber
Institution: California State Polytechnic University
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $500
Awards: G2928075185, G723036381, G8358302857
OpenAlex ID: W4403749559